Fountain-pen.



N.`sa4,o29. Patented oct. s, laas.'

` E. BESERT.

FUUNTAIN PEN. (Appximun mea 1.11.26, 1691.)

(In lodsl.)

UNITED STATES 'v PATnNTfOrr-icn EDUARD 'nnisnnn on'nnNNnnoN-Tnn-sine, GERMANY. l

FOUNTAIN-PEN.

SPECIFICATION formingpart of Letters Patent No. 634,029, dated October 3, 1899.

i Application led January 2B, 1897. Serial No. 620,735.`A (No model.)

T @ZZ whom it may concern:

Be it known that I, EDUARD REISERT, a subject of the King of Prussia, German Emperor, and a resident of Hennef-on-the-Sieg, in the Province of the Rhine, German Empire, have invented new and useful vImprovements in Fountain-Peris, (for which I have obtained patents in the following countries Denmark,v

o No. 1,592, bearing date April 26, 1897; Italy,

No. 122, Vol. LXXXVII, bearing date April 24, 1897; Hungary, No.9,285, bearing date April 23, 1897; Norway, No. 6,162, bearing date April 24, 1897 Austria, No. 1,726, VOL XLVII, bearing date April 20, 1897; England, No. 924, bearing date January 13, 1897; Switzerland, No. 13,885, bearing date January 15, 1897; Belgium, N0.125,69G, bearing date January 13, 1897; FrancerNc. 262,549, bearing date December-24, 1896, and Germany, No.

92,299, bearing dateDecember 29, 1895,) of which the following is a specification.

My invention relates to a fountain-pen in which between the reservoir for the ink and the pen proper an auxiliary chamber is interposed. 'Ihe walls of said auxiliary chamber are elastic in order to convey the ink from the same to the pen by'an external pressure exerted upon these elastic Walls.

the channel e is closed and the ink contained Y within the auxiliary chamberis separated lfromthe ink contained within the reservoir t'. When thereafter the elastic body is still further compressed, the ink is driven from the auxiliary reservoir into the `pipe or hose o or to the pen,respectively. This hose o is closed at o3 by means of a clamp e'. This clamp (shown separately in Fig. 2)` has two legs which by their elasticity are pressed together so far as to close the hoseo. As soon u as the pressure in this hose o, caused by the pressure exerted upon the Walls of the chamber a, is higher than the pressure of the elas- Y ticity of the clamp .e the legs of this clamp will be separated and allow the ink to iiow out. a In consequence thereof the pressure in the chamber c, vanishes and the clamp e closes again the hose o. A

In order'to facilitate compressing the channel e just atv the place as, a plate d is provided which rests upon the Wall offthe chamber a and of the lower end of the channel e, so that by pressing this plate downfat iirst the chan nel e is closed and afterward a pressure is exl erted upon the walls of the chamber a. This plate d is fixed to the free end of a lever which is fulcrumed atf.

Having thus fully described the nature of this invention, what I desire to secure by Letters Patent of the United States is- VIn a fountain-pen, the combination with a main reservoir, an auxiliary chamber a, having elastic walls, and being connected with the main reservoir, means for interrupting said connection and pressing at the same time upon the elastic Walls of the auxiliary chamber ct; a iiexible tube'leadin g from said auxiliary chamber a to the pen proper, and a clamp for closing said iiexible tube, substantially as and for the purpose set forth and described.

In testimony whereof I have signed this specification in the presence of two subscriba ing witnesses.

f EDUARD REISERT.

-Witnessesz WM. C. EMMET, W. H. MADDEN.. 

